Determination of soil content in chlordecone (organochlorine pesticide) using near infrared reflectance spectroscopy (NIRS)

Brunet Didier, Woignier Thierry, Jannoyer Magalie, Achard Raphaël, Rangon Luc, Barthès Bernard. 2009. Determination of soil content in chlordecone (organochlorine pesticide) using near infrared reflectance spectroscopy (NIRS). Environmental Pollution, 157 (11) : pp. 3120-3125.

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Abstract : Chlordecone is a toxic organochlorine insecticide that was used in banana plantations until 1993 in the French West Indies. This study aimed at assessing the potential of near infrared reflectance spectroscopy (NIRS) for determining chlordecone content in Andosols, Nitisols and Ferralsols from Martinique. Using partial least square regression, chlordecone content conventionally determined through gas chromatography- mass spectrometry could be correctly predicted by NIRS (Q2 ¼ 0.75, R2 ¼ 0.82 for the total set), especially for samples with chlordecone content <12 mg kg_1 or when the sample set was rather homogeneous (Q2 ¼ 0.91, R2 ¼ 0.82 for the Andosols). Conventional measures and NIRS predictions were poorly correlated for chlordecone content >12 mg kg_1, nevertheless ca. 80% samples were correctly predicted when the set was divided into three or four classes of chlordecone content. Thus NIRS could be considered a time- and cost-effective method for characterising soil contamination by chlordecone. (Résumé d'auteur)

Mots-clés Agrovoc : Chlordécone, Spectroscopie infrarouge, Mesure, Ferralsol, Nitosol, Andosol, Musa, Impact sur l'environnement, Pollution du sol

Mots-clés géographiques Agrovoc : Martinique

Classification Agris : U30 - Research methods
P33 - Soil chemistry and physics
H10 - Pests of plants
P02 - Pollution

Champ stratégique Cirad : Axe 1 (2005-2013) - Intensification écologique

Auteurs et affiliations

  • Brunet Didier, IRD (FRA)
  • Woignier Thierry, PRAM (MTQ)
  • Jannoyer Magalie, CIRAD-PERSYST-UPR HortSys (MTQ)
  • Achard Raphaël, CIRAD-PERSYST-UPR Systèmes bananes et ananas (MTQ)
  • Rangon Luc, IRD (MTQ)
  • Barthès Bernard, IRD (FRA)

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